Spinning and doubling machinery.



J. ROBERTSON.

SPINNING AND DOUBLIN G MACHINERY.

APPLIOATIOH rum) JULY 9. 1901.

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J. ROBERTSON. SPINNING AND DOUBLING MACHINERY.

APPLICATION FILED JULY 9, 1907. 937,647. Patented 0ct.19,1909. 6SHEETS-SHEET 2.

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J. ROBERTSON.

SPINNING AND DOUBLING MACHINERY.

APPLICATION- IILBD JULY 9, 1907.

Patented Oct. 19, 1909. 8 SHEETS-SHEET 3.

J. ROBERTSON.

SPINNING AND DOUBLING MACHINERY;

APPLICATION FILED JULY 9, 1907.

Patented Oct. 19, 1909.

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.APPLIOATIUN TILED JULY 9, 1907.

Patented Oct. 19, 1909.

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J. ROBERTSON.- SPINNING AND DOUBLING MACHINERY.

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Patented Oct. 19, 1909.

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JAMES ROBERTSON, OF -WEST FERRY, NEAR DUNDEE, SCOTLAND.

SPINNING AND DOUBLING- MACHINERY.

Specification of Letters Patent.

Patented Oct. 19, 1909.

Application filed July 9, 1907. Serial No. 382,877.

To all whom it may concern:

Be it known that I, JAMES ROBERTSON, a subject of the King of GreatBritain and Ireland, and a resident of Vinebank, WVest Ferry, nearDundee, in the county of Forfar, Scotland, (whose postoflice address isVinebank, Vest Ferry, near Dundee, in the count-y of Forfar, Scotland,)have invented a certain new and useful Improvement in and Connected withSpinning and Doubling Machinery, of which the following is aspecification.

This invention relates to improvements in the construction of machinesfor spinning jute, flax, cotton, and the like and it is also applicablefor twisting and doubling machines.

In my British specification #21331 of December 7 1891, I form eachspindle separate with one end supported in the platform, but it wasfound in practice that such a form of spindle was too hard on the yarnbecause when the bobbin rotated it at a high speed there was a tremorset up which broke the yarn. Besides the stud had such an inedequatebearing that it got loose and wabbled. By staggering the spindles, as inthe present case, a double bearing is obtained with a bush or bearing ateach side and the spindle remains absolutely free from vibration andquite true.

In order that my invention and the manner of putting the same intopractice may be properly understood, I have hereunto appended sixexplanatory sheets of drawings in which the same reference numerals areused to indicate corresponding parts in the figures shown.

Figure 1 is a front elevation of part of a spinning frame showing myinvention applied thereto. Fig. 2 is a side elevation of a part of suchframe looking on it in the direction of the arrow A. (Fig. 1). Fig. 3 isa front elevation of part of a spinning frame showing my inventionapplied thereto and on an enlarged scale. Fig. 4 is a part sectionalelevation at B. B. (Fig. 3) and Fig. 5 is a section through the platformshowing a modified form of spindle, or stud. Fig. 6 is a part frontelevation of the sliding block and the platform and Fig. 7 is a viewlooking in the direction of the arrow B, Fig. 6; Fig. 8 is a sideelevation of a part of the frame showing how the sliding blocks areoperated.

In carrying out my invention I make the two opposite bobbin spindles orstuds .11, which are carried by the square tubular platform 12, in one,that is to say the spindle or stud is passed completely through thesquare platform and each extremity projects equally from same. As thereis a stud projecting from each face, two of the combined studs will berequired for the set and as one stud must pass the other, the axiscommon to each opposite pair cannot cross at the same point but must beadjacent, as is shown. The bobbin platform 12 is traversed up and down,as in ordinary spinning frames, by means of the cam 13 which actuatesthe roller 14:, lever 15, tension rod 16, chain 17 and pulleys 18 and 19in this manner, causing the chains 20 to raise and lower the slidingblocks 23 which carry the platform 12.

In order to cause the axis of each stud to come directly in line withthe axis of the flier 28 the platform 12 carrying the studs must becapable of moving sidewise by an amount equal to the pitch of a pair ofstuds, that is to say, when the platform makes one quarter turn itmovesfrom the one position to the other and at the next quarter turn it movesback again. This movement can be obtained by a waved cam 3 on theplatform engaging with a stud or cam 4 on the sliding block 23 carriedby the frame of the machine. A cam 3 is on each end of the platform,their relative position being such that the platform in its rotation isalternately moved backward and forward with the result that each row ofspindles or studs comes in line with the axis of the fliers as theplatform is turned.

As shown in Fig. 4 the spindles or studs 11 are firmly fixed in theplatform, while in Fig. 5 they are shown adapted to run in bushes 5should the friction of the rotating bobbin 29 on its spindle besufficient to move them.

Having now described my invention, what I claim as new and desire tosecure by Letters Patent is 1. In spinning and doubling machinery,

a hole of one pair being opposite the other hole of the same pair, saidpairs of holes being arranged in difierent planes, bushes in said holes,and a spindle passing through the bushes in each pair of holes andprojecting a line with its flier; sliding blocks; a cam on each end ofthe platform and a cam on each sliding block, as described and for thepu rposes setforth. V p

In Witness whereof I have hereunto set my hand in presence of twoWitnesses. I

JAMES ROBERTSON.

Witnesses:

GEORGE CAMERON DOUGLAS, AGNES OULBARD DOUGLAS.

